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Finding the Fourth Proportional to 554,955.80, 765,841.01 and 300,306.98

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Solution

The fourth proportional to 554,955.80, 765,841.01 and 300,306.98 is: 414,424.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,955.80 : 765,841.01 = 300,306.98 : x
  2. Step 2: Convert to fraction form
    554,955.80/765,841.01 = 300,306.98/x
  3. Step 3: Cross multiply
    554,955.80x = 765,841.01 × 300,306.98
  4. Step 4: Simplify right side
    554,955.80x = 229,987,395,542.51
  5. Step 5: Solve for x
    x = 229,987,395,542.51/554,955.80
  6. Step 6: Final answer
    x = 414,424.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.